#7292: Implement Feature: Stretch Subtitles Timing by Factor -------------------------------------+------------------------------------- Reporter: MattMcManis | Type: Status: new | enhancement Component: ffmpeg | Priority: wish Keywords: subtitle, | Version: subtitles, stretch, timing, time | unspecified Blocking: | Blocked By: Analyzed by developer: 0 | Reproduced by developer: 0 -------------------------------------+------------------------------------- I'm looking to have a feature added, '''Stretch Subtitles''' by a factor [0.5, 100.0] range, like how `atempo` or `rubberband` works. https://ffmpeg.org/ffmpeg-filters.html#atempo https://ffmpeg.org/ffmpeg-filters.html#toc-rubberband '''Example:''' Something like `-substretch 3.0` (speed up 300%), `-substretch 0.5` (slow down 50%). Or as a filter `-vf "subtitles=stretch=3.0"`. The program '''MKVToolNix''' is able to do this under the "Timestamps and default duration" section. This would be different that `itsoffset`, which does not stretch, but shifts. -- Ticket URL: <https://trac.ffmpeg.org/ticket/7292> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker